Hi Joe , hope you are still doing GRANT research . My cousin Anne Heath Neuman , will probably dis-agree with most of what follows , but we can debate that later .
There was a Peter Grant living possibly Isle of Skye Scotland circa 1750 , and he seems to have fathered John Grant of Lachine b. abt. 1750 d. 1817 Lachine Quebec who married Margaret Beattie . This Peter Grant of Isle of Skye probably also fathered several other siblings of this John Grant of Lachine [noted business man and shipping magnate of late 1700s and early 1800s Montreal] and these may include a Peter Grant and Alexander Grant who also emigrated to Canada and were possibly involved in the Fur Trade . I think a lady by the name of Marion Lees who lives in Glasgow Scotland also claims descent from this Peter Grant of Isle of Skye .
This Peter Grant of Isle of Skye then seems to have married Janet Duldreggan Grant b. abt. 1735 d. abt. 1766 sister to Isabella / Isobel Duldreggan Grant b. abt. 1734 and buried at St Andrews West Ontario [ just north of Cornwall Ont.] and this Isobel Duldreggan Grant married Simon Fraser Sr. d. 1779 Albany NY and they were parents of Simon Fraser Jr. the Explorer . Janet Duldreggan Grant b. 1735 and Isobel Duldreggan Grant Fraser b. 1734 were both children of Aeneas / Angus Grant b. abt. 1702 d. 1779 and wife Hannah Grant of Duldreggan Glenmoriston Scotland who were also parents of my John Duldreggan Grant b. 1737 d. 1802 who arrived in Glengarry Ont. in 1786 and acquired Lots 25 & 26 Street Road Charlottenburg Glengarry . Janet Duldreggan Grant b. 1735 and Peter Grant of Isle of Skye had son Alexander Grant [ whom I think later acquired the Nickname "Brewer Grant"] whom I have designated as Alexander Brewer Grant b. abt. 1758 [ my guesstimate on birth year] who also emigrated and lived in Glengarry married to Sarah Claridge and they baptized their kids at my St Andrews Presbyterian Church Williamstown Glengarry .
Since Alexander Brewer Grant and John Grant of Lachine had same father Peter Grant of Isle of Skye , they are half brothers . John Grant of Lachine probably also had a full brother or possibly another half brother also named Alexander Grant with father Peter Grant of Isle of Skye .
This Alexander Brewer Grant was a nephew of my John Duldreggan Grant Lots 25 & 26 , and 1st Cousin to my Alexander Alex Grant Lot 26 Street Road [ the east-half Lot 26 was acquired in trade with his father John Duldreggan Grant Lots 25 & 26 ]. My Alexander Alex Grant also had a younger half brother named the Honourable Alexander Grant , both sons of John Duldreggan Grant Lots 25 & 26 .
So Joe , if you are still out there listening ; your Alexander Brewer Grant m. Sarah Claridge is a grandson of Aeneas / Angus Grant of Duldreggan , as is my Alexander Alex Grant Lot 26 .